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Annette [7]
3 years ago
9

Consider this right triangle with given measures. measures What is the unknown leg length? Pythagorean theorem:a2+b2=c2 122+b2 =

152 144 + b2 = 225 b2 + 81 b = cm
Mathematics
2 answers:
Evgesh-ka [11]3 years ago
8 0
The anser to the question is b=9
solmaris [256]3 years ago
4 0
We have that
a=12 cm
b=?
c=15 cm

Applying the Pythagoras Theorem
c²=a²+b²
15²=12²+b²
b²=15²-12²
b²=225-144
b²=81
b=√81
b=9 cm

the answer is
b=9 cm
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I need to know the equations
dem82 [27]
Let l, t, b represent the numbers of lions, tigers, bears, respectively.

2l +3t +3b = 156 . . . . . . . 156 meals per day are supplied
l +t = 3b . . . . . . . . . . . . . . there are 3 times as many great cats as bears
l +t +b = 68 . . . . . . . . . . . there are a total of 68 animals

_____
The last 2 equations tell you
.. 4b = 68
.. b = 17
Subtracting 3 times the last equation from the first gives
.. -l = -48
There are 48 lions, 3 tigers, and 17 bears.
4 0
3 years ago
Read 2 more answers
HELP PLEASE ANYONE IVE BEEN ASKING THE SAME QUESTION FOR SO LONG OMG
Gala2k [10]

Answer:

c

Step-by-step explanation:

C says that w must be greater than or equal to 452.2 and less than or equal to 455.0

8 0
2 years ago
How many multiples of 4 are there in {n; 37< n <1001}?
s2008m [1.1K]
Let's begin by listing the first few multiples of 4:  4, 8, 12, 16, 20, 24, 28, 32, 36, 38, 40, 44.  So, between 1 and 37 there are 9 such multiples:  {4, 8, 12, 16, 20, 24, 28, 32, 36}.  Note that 4 divided into 36 is 9.

Let's experiment by modifying the given problem a bit, for the purpose of discovering any pattern that may exist:

<span>How many multiples of 4 are there in {n; 37< n <101}?  We could list and then count them:  {40, 44, 48, 52, 56, 60, 64, 68, 72, 76, 80, 84, 88, 92, 96, 100}; there are 16 such multiples in that particular interval.  Try subtracting 40 from 100; we get 60.  Dividing 60 by 4, we get 15, which is 1 less than 16.  So it seems that if we subtract 40 from 1000 and divide the result by 4, and then add 1, we get the number of multiples of 4 between 37 and 1001:

1000
   -40
-------
 960

Dividing this by 4, we get 240.  Adding 1, we get 241.

Finally, subtract 9 from 241:  We get 232.

There are 232 multiples of 4 between 37 and 1001.

Can you think of a more straightforward method of determining this number? </span>

5 0
3 years ago
g A test was conducted to determine if there is a difference between Canadian and American average heart rates. A group of 36 Ca
melisa1 [442]

Answer:

The test statistic  | t |  =4.45

Step-by-step explanation:

<u><em>Step(i):-</em></u>

Given that the first sample size n₁ = 36

Given that the second sample size n₂ = 34

Mean of the first sample x₁⁻ = 68.5

Mean of the second sample x₂⁻ = 70

<u><em>Step(ii):-</em></u>

Test statistic

       t = \frac{x^{-} _{1}-x^{-} _{2}  }{\sqrt{S^{2} (\frac{1}{n_{1} }+\frac{1}{n_{2} }  } )}

     t = \frac{68.5-70}{\sqrt{2(\frac{1}{36}+\frac{1}{34} ) } }

    t = \frac{-1.5}{0.337} = -4.45

The test statistic  | t | = |-4.45| =4.45

6 0
3 years ago
Which of the following sentences could not be used to represent the equation 7/2= 14?
yawa3891 [41]

Answer:

The third sentence is wrong.

Step-by-step explanation:

It is not 2 divided by a number equals 14. 7 is divided by a number and equals 14.

7 0
2 years ago
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